pyside6-scintilla

Permissively-licensed PySide6 bindings for the Scintilla code editor component.

Status

See GitHub Issues for what's done and what's next.

Why this exists

The standard way to use Scintilla from Python + Qt is QScintilla (Riverbank Computing) — but it's a PyQt6 binding, with no PySide6 equivalent. Like PyQt6, it's also GPLv3 or commercially licensed.

Scintilla itself is licensed under the Historical Permission Notice and Disclaimer — a permissive license with no copyleft. This project aims to expose that permissive core directly to PySide6 users.

Goals

pyside6-scintilla aims to be:

MIT licensed — usable in open-source or closed-source projects freely
PySide6 native — built with shiboken6, integrating naturally with PySide6 widgets
A faithful, low-level binding of Scintilla's ScintillaEditBase widget — not a reimplementation of QScintilla's higher-level API
Available as pre-built wheels for Linux (x86_64, aarch64), Windows (x86_64), and macOS (arm64, x86_64)
Not affiliated with Riverbank Computing or the QScintilla project

Installation

Install from PyPI:

pip install pyside6-scintilla

PySide6-Essentials 6.10+ is installed automatically as a dependency; the wheels bundle everything else ScintillaEditBase needs at runtime. Essentials provides the whole PySide6 import namespace — only QtCore, QtGui and QtWidgets are used here, so the ~175 MB of PySide6-Addons (Qt WebEngine, Qt3D, QtCharts …) is left out. Install PySide6 yourself if you want them.

To build from source instead (e.g. for development), see docs/build.md for prerequisites (Qt 6.10+ with Qt6Core5Compat, a C++17 compiler) and platform-specific setup.

examples/highlighting/lexilla_highlighting/ uses lexilla as a dev dependency, installed from PyPI like any other package.

Usage

from PySide6.QtWidgets import QApplication
from pyside6_scintilla import ScintillaEdit

app = QApplication([])
editor = ScintillaEdit()
editor.setText("hello, world")
editor.show()
app.exec()

ScintillaEdit exposes a typed method per Scintilla message (e.g. setText(), textLength(), gotoLine()) on top of ScintillaEditBase's raw .send()/.sends() message API — the same SCI_* messages as the C interface, not a QScintilla-style high-level API. See examples/simple_scintilla_edit/ for a complete example (line-number margin, "Go to Line", block selection/editing), or examples/simple_scintilla_base_edit/ for the lower-level send/sends API.

Versioning

Version numbers follow <Scintilla version>.<binding revision> — e.g. 5.6.3.0 is binding revision 0 for Scintilla 5.6.3. The binding revision increments for releases of this package that don't correspond to a new Scintilla version (bug fixes, new API surface, CI changes, etc.), and resets to 0 when Scintilla itself releases a new version.

Documentation

Doc	Contents
docs/alternatives.md	How this compares to Monaco-based Qt bindings and other line-numbers + block-edit widgets
docs/auditing.md	How to verify the vendored Scintilla source matches upstream
docs/bindings.md	How the shiboken6 bindings are built, generated files, and the Scintilla-update procedure
docs/build.md	Build prerequisites, local build/rebuild, wheels, and publishing
docs/documenting.md	How the docs site is built, and how to add or update a page
docs/specs/	Design specifications and action plans for in-progress and planned work
docs/specs/mission.md	Project background, goals, and design decisions
docs/testpypi.md	Setting up TestPyPI trusted publishing
examples/	Standalone example apps, including ones showing lexilla-py in use
GitHub Issues	Planned and in-progress work
Project board	Joint roadmap for `pyside6-scintilla` and lexilla-py; issues/PRs from both repos are auto-added

Development tools

tools/ holds development scripts, run with uv run python tools/<script>.py:

Script	Purpose
generate_pyi.py	Regenerates the `.pyi` type stub for `_pyside6_scintilla`
check_docs_sync.py	Verifies shared content blocks stay in sync between `README.md` and `docs/index.md`
clean_window_corners.py	One-off cleanup for Windows window screenshots used in docs

License

src/scintilla/ — HPND License (Scintilla, copyright Neil Hodgson)
Everything else — MIT License

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Release history Release notifications | RSS feed

This release

5.6.3.7

Jul 28, 2026

5.6.3.6

Jul 14, 2026

5.6.3.5

Jul 14, 2026

5.6.3.4

Jun 27, 2026

5.6.3.3

Jun 19, 2026

5.6.3.2

Jun 14, 2026

5.6.3.1

Jun 13, 2026

5.6.3.0

Jun 13, 2026

0.0.0

Jun 11, 2026

pyside6-scintilla 5.6.3.7

pyside6-scintilla

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